EP 0997359 A2 20000503 - Embedded self-test for rain-sensors
Title (en)
Embedded self-test for rain-sensors
Title (de)
Integrierter Selbsttest für Regensensoren
Title (fr)
Test automatique intégré pour capteurs de pluie
Publication
Application
Priority
US 18271798 A 19981029
Abstract (en)
A sensor for detecting moisture on an outside surface of a windshield is disclosed. The sensor includes an emitter circuit (12) for emitting light energy, and a detector circuit (16) for receiving light energy. A processor (22) controls the emitter circuit (12) and processes signals received from the detector circuits (16). A self test circuit (16) is connected between the processor (22) and the emitter circuit (12), the self test circuit is operably associated with the emitter circuit (12) for generating a test signal for simulating the presence of moisture on the outside surface of the windshield.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B60S 1/0822 (2013.01 - EP US); B60S 1/0892 (2013.01 - EP US); G05B 9/02 (2013.01 - EP US); B60S 1/0833 (2013.01 - EP US); Y10S 318/02 (2013.01 - EP US)
Citation (applicant)
- US 5059877 A 19911022 - TEDER REIN S [US]
- US 4620141 A 19861028 - MCCUMBER ROGER D [US], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 5990647 A 19991123; DE 69917559 D1 20040701; DE 69917559 T2 20050602; EP 0997359 A2 20000503; EP 0997359 A3 20030115; EP 0997359 B1 20040526
DOCDB simple family (application)
US 18271798 A 19981029; DE 69917559 T 19990721; EP 99114100 A 19990721